It's common sense that we often think that the longer something is, the taller it is, and the shorter it is, the lower it is. But, you know, some things are getting shorter and shorter, and that's a wonderful phenomenon. Let's take a look at what things get shorter and shorter, how they get shorter, and the science behind them.
Human height: Human height is determined by a combination of genetic and environmental factors, and in general, humans reach their peak growth around puberty and then gradually stop growing. However, as humans get older, they gradually become shorter in height. This is due to decreased water in the discs, thinning of the bones, and decreased muscle tone. According to research, the height of human beings from 20 to 80 years old will shorten by about 5 centimeters on average.
Height of trees: Many trees gradually get taller as they grow, but when they reach a certain height, they start to get shorter. This is due to the fact that the growth of trees is affected by gravity, and when the height of trees exceeds a certain limit, their water transport and photosynthesis are hindered, causing the growth rate to decrease or even stop. According to research, the maximum height of the tree is about 130 meters.
Length of tobacco: Tobacco is a common plant, and its leaves can be used to make cigarettes and cigars. The growth cycle of tobacco is generally 3 to 4 months, and its leaves continue to elongate until flowering. However, when the leaves of tobacco reach a certain length, they start to get shorter. This is due to the fact that the leaves of tobacco are pulled by their own weight, causing the petioles to bend and the leaves to droop, thus reducing the height of the leaves. According to research, the maximum length of tobacco leaves is about 1About 5 meters.
Height of flame: A flame is a visible mixture of gases that is produced by a chemical reaction between a combustible substance and oxygen at high temperatures. The height of the flame will vary with the size, shape, temperature, wind speed and other factors of the fire source, generally speaking, the larger the fire source, the higher the flame. However, when the fire source reaches a certain size, the flame will start to get shorter. This is due to the fact that the height of the flame is limited by the pressure of the air, and when the height of the flame exceeds a certain limit, the top of the flame is compressed by the air, thus reducing the height of the flame. According to research, the maximum height of the flame is about 300 meters.
Through this article, do you have a deeper understanding of what is getting longer and shorter?Are you amazed and curious about these wonderful phenomena of life and nature?If you have any other questions or suggestions, please feel free to contact me.